package com.songtech.uitest.util;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.io.*;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

@Component
public class ZipUtils {

    @Autowired
    private JarPathHelper jarPathHelper;


    private final int  BUFFER_SIZE = 2 * 1024;


    /**
     * 压缩成ZIP 方法1
     * @param srcDir 压缩文件夹路径
     * @param out    压缩文件输出流
     * @param KeepDirStructure  是否保留原来的目录结构,true:保留目录结构;
     *                          false:所有文件跑到压缩包根目录下(注意：不保留目录结构可能会出现同名文件,会压缩失败)
     * @throws RuntimeException 压缩失败会抛出运行时异常
     */

    public void toZip(String srcDir, OutputStream out, boolean KeepDirStructure) throws RuntimeException{

        long start = System.currentTimeMillis();

        ZipOutputStream zos = null ;

        try {

            zos = new ZipOutputStream(out);

            File sourceFile = new File(srcDir);

            compress(sourceFile,zos,sourceFile.getName(),KeepDirStructure);

            long end = System.currentTimeMillis();

            System.out.println("压缩完成，耗时：" + (end - start) +" ms");

        } catch (Exception e) {

            throw new RuntimeException("zip error from ZipUtils",e);

        }finally{

            if(zos != null){

                try {

                    zos.close();

                } catch (IOException e) {

                    e.printStackTrace();

                }

            }

        }



    }



    /**
     * 压缩成ZIP 方法2
     * @param srcFiles 需要压缩的文件列表
     * @param out 压缩文件输出流
     * @throws RuntimeException 压缩失败会抛出运行时异常
     */
    public void toZip(List<File> srcFiles , OutputStream out)throws RuntimeException {

        long start = System.currentTimeMillis();

        ZipOutputStream zos = null ;

        try {

            zos = new ZipOutputStream(out);

            for (File srcFile : srcFiles) {

                byte[] buf = new byte[BUFFER_SIZE];

                zos.putNextEntry(new ZipEntry(srcFile.getName()));

                int len;

                FileInputStream in = new FileInputStream(srcFile);

                while ((len = in.read(buf)) != -1){

                    zos.write(buf, 0, len);

                }

                zos.closeEntry();

                in.close();

            }

            long end = System.currentTimeMillis();

            System.out.println("压缩完成，耗时：" + (end - start) +" ms");

        } catch (Exception e) {

            throw new RuntimeException("zip error from ZipUtils",e);

        }finally{

            if(zos != null){

                try {

                    zos.close();

                } catch (IOException e) {

                    e.printStackTrace();

                }

            }

        }

    }





    /**
     * 递归压缩方法
     * @param sourceFile 源文件
     * @param zos zip输出流
     * @param name 压缩后的名称
     * @param KeepDirStructure 是否保留原来的目录结构,true:保留目录结构;
     *                         false:所有文件跑到压缩包根目录下(注意：不保留目录结构可能会出现同名文件,会压缩失败)
     * @throws Exception
     */
    private void compress(File sourceFile, ZipOutputStream zos, String name,

                                 boolean KeepDirStructure) throws Exception{

        byte[] buf = new byte[BUFFER_SIZE];

        if(sourceFile.isFile()){

            // 向zip输出流中添加一个zip实体，构造器中name为zip实体的文件的名字

            zos.putNextEntry(new ZipEntry(name));

            // copy文件到zip输出流中

            int len;

            FileInputStream in = new FileInputStream(sourceFile);

            while ((len = in.read(buf)) != -1){

                zos.write(buf, 0, len);

            }

            // Complete the entry

            zos.closeEntry();
//            zos.close();/////////////////////

            in.close();

        } else {

            File[] listFiles = sourceFile.listFiles();

            if(listFiles == null || listFiles.length == 0){

                // 需要保留原来的文件结构时,需要对空文件夹进行处理

                if(KeepDirStructure){

                    // 空文件夹的处理

                    zos.putNextEntry(new ZipEntry(name + "/"));

                    // 没有文件，不需要文件的copy

                    zos.closeEntry();
//                    zos.close()////////////////////////;
                }

            }else {

                for (File file : listFiles) {

                    // 判断是否需要保留原来的文件结构

                    if (KeepDirStructure) {

                        // 注意：file.getName()前面需要带上父文件夹的名字加一斜杠,

                        // 不然最后压缩包中就不能保留原来的文件结构,即：所有文件都跑到压缩包根目录下了

                        compress(file, zos, name + "/" + file.getName(),KeepDirStructure);

                    } else {

                        compress(file, zos, file.getName(),KeepDirStructure);

                    }

                }

            }

        }



    }



    public void resultsCompress() throws Exception{

        String zipFilePath = jarPathHelper.getZipFilePath("");

        File logsFile = new File(zipFilePath + "logs");
        File screenShotsFile = new File(zipFilePath + "screenshots");
        File testResultsFile = new File(zipFilePath + "test-results");

        FileOutputStream outStream = new FileOutputStream(new File(zipFilePath + "results.zip"));
        ZipOutputStream zipOutStream = new ZipOutputStream(outStream);

        compress(logsFile, zipOutStream, "results/logs", true);
        compress(screenShotsFile, zipOutStream, "results/screenshots", true);
        compress(testResultsFile, zipOutStream, "results/test-results", true);

        zipOutStream.close();

    }



    public static void main(String[] args) throws Exception {

//        /** 测试压缩方法1  */
//
//        FileOutputStream fos1 = new FileOutputStream(new File("c:/mytest01.zip"));
//
//        ZipUtils.toZip("D:/log", fos1,true);
//
//
//
//        /** 测试压缩方法2  */
//
//        List<File> fileList = new ArrayList<>();
//
//        fileList.add(new File("D:/Java/jdk1.7.0_45_64bit/bin/jar.exe"));
//
//        fileList.add(new File("D:/Java/jdk1.7.0_45_64bit/bin/java.exe"));
//
//        FileOutputStream fos2 = new FileOutputStream(new File("c:/mytest02.zip"));
//
//        ZipUtils.toZip(fileList, fos2);


//        File sourceFile = new File("D:/jarRunningFolder/test-output");
//
//        FileOutputStream outStream = new FileOutputStream(new File("D:/jarRunningFolder/test-output.zip"));
//        ZipOutputStream zipOutStream = new ZipOutputStream(outStream);
//
//        ZipUtils.compress(sourceFile, zipOutStream, "test-output", true);
//        zipOutStream.close();


        new ZipUtils().resultsCompress();

    }

}
